Home / 1,268,316.80-1,902,760.32-426,844.16

Finding the Fourth Proportional to 1,268,316.80, 1,902,760.32 and 426,844.16

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Solution

The fourth proportional to 1,268,316.80, 1,902,760.32 and 426,844.16 is: 640,362.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,268,316.80 : 1,902,760.32 = 426,844.16 : x
  2. Step 2: Convert to fraction form
    1,268,316.80/1,902,760.32 = 426,844.16/x
  3. Step 3: Cross multiply
    1,268,316.80x = 1,902,760.32 × 426,844.16
  4. Step 4: Simplify right side
    1,268,316.80x = 812,182,130,471.73
  5. Step 5: Solve for x
    x = 812,182,130,471.73/1,268,316.80
  6. Step 6: Final answer
    x = 640,362.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.